I upgraded my hp laptop from 19.10 to 20.04. (new installation).
Now I cannot activate the rtl8821ce WiFi module.
For 19.10. there was a hint in ask ubuntu
sudo dpkg -i rtl8821ce-dkms_5.2.5.2.1.30816.20190425-0ubuntu1_all.deb
which worked well, but it doesn't work with 20.04.